. >>> the images of last friday's school shooting across the country hit us at home. psychologists tell us younger children will have the hardest time understanding it all. >> so for those children it's really important to try and limit their exposure to these events, all the news coverage, and to more importantly to reassure to them the safety of their environment. >> older children will have a better understanding. but they will want to know more specifics. dr. berry says be open with them and stress this is an isolated incident. >>> the school shooting in newtown, connecticut has sparked a fresh debate on gun control. last night president obama told mourners that he might be willing to tackle the issue of gun control and some congressional democrats say that friday's events have made the time right to renew the assault weapons ban that expired in 2004. >> it will ban the sale, the transfer, the import and the possession, not retroactively, but prospectively and it will ban the same for big clips, drums or strips of more than 10 bullets. >> of course, dianne feinste